Pretty good, but not enough for my sweating!
Halo headbands worked for 1 hour before sweat pours into my eyes. I was hoping this product would do better, but it doesn't for me -- unless I wear the Halo over the Sweathawg. Helmet alone -- also worked 1 hour only. I'm trying facial antiperspirant today, in hopes of not having to wear both helmets at once. It seems to work longer when not covered by a cap, btw.